Wire-support.



No. 868,3 68. PATENTED OCT. 15, 1907.

L. sTEINBBnaBm rotation.

LOUIS S'lElNBERGER, OF'NEW YDRK, NJY.

` WIRE-SUPPORT.

zic. 868,368.

Specification of Letters Patent. Y

Patented et..15,19o7. 1

Munition and otros 5,1906. serio 110.39345.

that-:is to say, the ear or clip is first disposed properly v l.in-the position in;whicli it is to occupy, and is then secured without being rotated .n v p My invention further' relates t0 the strengthening of certain parts of the wire support in order to enable them to be handled by means of wrenches, without mut-Hating the insulation and to lock the several parte together more effectively.

My invention also relates to certainl improved details of construction whereby the parts, when Vonce placed in position, are .securely locked-sonas not to be easily disturbed.

Reference is to be had to the accompanying'drawings forming a part of this specification, in which sirnilar characters of reference indicate corresponding in all the figures.

Figure l isv a side elevation, showingmy-,improved wire support complete, the several parts beingin their' -respective normal positions; Fig. is a central vertical section, and showing how thefseveral parts are connected together and locked; Fig. 3 is a reduced plan of the' metallic member used to protect the cap from injury, und also for-enabling the cap to-beturned by aid of 5 a wrench; and Fig. 4 is a perspective view of my improved lockingrnernber for holding the block 15 in a predetermined position relatively to the screw stem 9 and thc cap 8. i

i At 5 is shown a yoke of iron which may be substan-l tially'of the pattern usually employed: This yoke is. provided with an annular portion- 6 having conoidal` internal surface 7.

The cap is shown'at 8 and is of insulating material, v

preferably electrosef A threaded stern 9 is provided with a head 10, the latter being embedded within theimaterial of the cap 8. Encircling thecap 8 is a collar 11 of metal, preferably iron, this collar being provided with an inwardly projecting annular flange l2 and having a depending annular portion 13 projecting slightly below the under surfae the cap 8. collar l1 is provided with facets y a wrench in order to enable the cap to beheld against At 15 is shown d block of insulating material provided'with a conoidal portion 16, the latter natly fitting against the annular conoidal surface 7 ai the The4 to be engaged by.

yoke. lThe block 15 is further provided with holes 17 to be engaged byia Spanner wrench. The block l5 is also provided internally with a thread 18 mating the vstern 9, which for the purpose provided with a thread. The block 15 is centrally provided at its bottoni with an annular cylindrical aperture 19 into which fits an annular ysleeve 20 provided internally with a` thread 21,`

and further provided with facets 22. This'sleeve 20 fits neatly into the aperture 19 and is adapted to lock against the under iacevofjthe block l5. The clipfis shown n 23 and is providedv with a. thimbi 24 having a threaded socket 25 therein.. When the thirnble 24 is run upwardly upon the threaded stem 9 the bottom of the socket 25 jarns tightly against the lower end of the threaded stemso that the clip 23 is unableto turn any further without turning thecap 8,.

At 26 is. shown a washer of soit rubber interposed intermediate of the cap 8 and the block l5 in an aperture 27.provided for the purpose. The upper end of the block 1,5 fits neatly into this aperture.,

i The parts are assembled as followsi-The yoke 5 is suspended lin the manner well understood in this `art. The threaded stem 9 is nextlet down so as to be encircled by the annular portion 6 of the yoke, The washer 26 and` the block 15 are next started upon ther lower end 'of the threaded stem and are run upwardly, which may 'be done by turning the cap 8 from above or the block 15 from below. The revolution is stopped, however,

at a point which leaves the cap 8, and the block 15 loose relatively to the yoke. The sleeve 20 is next applied upon the lower end of the threaded stem and is run upwardly until it is almost, but not quiteV in engagementwiththe block 15. The thimble 24 is next started upon the lower end of the stem 9 and is run upwardly` until the bottom 25 lodges firmly and rigidly against the lower end of the stem 9. When this occurs there is no longer any relative movement as between the clip 23and the cap 8, though both of these parts considered as a unit may be turned relativelyto .the yoke 7- and also relatively to the block ].5-.` The clip 23is now turned by hand until .it yis in proper registry with the wire tol be supported, or is otherwise disposed in the position which it is intended to occupy` A wrench is now applied to the collar 11 for the purpose of preventing rotation of the cap 9, and consequently of the'clip 23. The block 15 is now turned 'by means of a wrench engaging the apertures 17 untilthe conoidal'surfac'e 16 of the block lodges firmly against the conoidal surface' 7 of the yoke. When thisv occurs, the washer 26 is slightly compressed and the cap 8 is -firmly locked rela` tively to the yoke.` By means of a wrench engaging the facets 22 the sleeve 20 is now tightened against the block 15 and serves'as a lock-nut for preventingrotation as between the block 15 and the2 cap 8. This completes the assemblage of the parts. "The washer of soft rubber when in proper position greatly improves the insulainsuring against leakage of the-current. Aswili bel noted from the preceding' description, theblock 15, of insulating material, being threaded internally', and [ittcd upon' the threaded metallic stem 9 is a self-locking.

member; that is to say, it issec'urel directly upon the threaded stem so as to hold, when tightened properly, without theaid of the sleeve 20. In case this l'sleeve were missing, therefore, the parts would tend to hold p tain variations may be employed without departing together in proper relation.

It will be understood that in this art' ithas heretofore been customary to support clips by means of .caps and cones. l The clips, howeveryhave generallybcenthread-- ed uponthe lower cud f thescrew stem'extending downwardly from the cap and have been tightened in position by having some part of the clip engage ldirectlyy the lower surface'of the cone. Hence, it has been necessary to rotate the clip in order to loosen or Atighten it relatively to the cap. Moreover, ithas heretofore been difficult toA bring the clip' into proper alinement, for the `reason that the upperlsurfaee of the clip did not engage the lower surface of the cone soaccurately as to prev'ent the clip when rotated from stopping in the wrong position. No matter .how accurately the threads were cut l it has been exceedingly diiiicult to make the blip when v rotated stop exactly in the right position. The least little variation'in size of the threaded parts would compel the clip to stop a little short of its proper pbsition, or to move a little too far, yas the cas'eirrnay'bel -Again, .even if the clip were yaccurately positioned and tightened, the swaying of 'the trolley pole and the movementof the line wire, due to the action of the wind, have ren- I A dered it exceedingly easy for the clip to work loose, the

tendency thus being for the cap to Worlfiipward. m'eanwhile turning in suchdir'ection that eventually the clip would become entirely loosened frorrfthel bolt, and the line, as well as the cap and cone would fall to the' ground.

All of' these objectionable features are-remedied by the device above described. When the sleeve 24 ,isse cured firmly yupon the stem-9, and the capI 8'and the clip 23 are adjusted as a unit and ,tightenedfrelatively to the yoke, these parts are not /basilyrloos'ened It will be noted that' it is not essential inlevery instancey ,to employ the member 20 as the cap l8 with 'thebolt 9,

the metal' yoke y7 and the insulating block 15 may be= locked together independentlyof'th'e member 20. The I member 20, in addition to serving asa lock-uut a'abovef described, greatly strengthens the lowei` central portion,

of the block 15 and prevents any liability of thisblok chipping. The member l1 greatly strengthensI the cap and prevents any liability of its` being chipped or broken away either by, -the applicationy of a wrench or from blows lof theftrblley pole. The clip 23 may be removed when necessary and replaced by another one with the greatest of ease and without then'e-` d cessity of disassembling the several parts' of the support, and without the liability of chipping or breaking the edge of the insulating cap or of the block. l

I-do not limit myself to the exact form or details of any or all of the paris above described, nor to -any"particular combination of elements entering into the conand desire to secure by. Letters Patentmember. Neither do I limit myself to the use of any prescribed materials from which to make the insulating cap and blockVl prefer, how'ever, to employ the insulating material known lin the art as electrose.

It will be evident to those skilled in the art that'cery from the scope or spirit of my invention.' l v Having thus described my invention, I claim as new v .1. .A wire support. comprising al yoke, a cap supported thereby'and' provided 'with :l central threaded stem, a threaded block mounted upon said stern and revoluble ln relation thereto for the purpose .of locking said cap relatively to said yoke, said block being provided with an aperf ture. :i ,locking me'mlier encircling said threaded stem and' sov provided witha portion Vprojectiiur into said aperture, and

m'eans for securing a clip upon mld threaded stem.

-2. L wire support, comprising u yokeyo. cap mounted thel-eupon and' provided' with a threaded stem, a collar of metal encircling said cup and embedded partially therein, said collar being provided with facets to be engaged by a wrench, arevoluble block threaded internally for engaging said stem, and means Ipr snp'porting a clip upon said stem.

A' wire support, comprising a yoke,a cap mounted thereupon and provided centrally with a stem and with an aperture concentric to said stem, n block of insulating material threaded upon said stem l'and provided with u portion` fittingy into said aperture,- o. washer 4mounted within said Aaperture andeng'gaged by saidbIOck, andmeuns for supporting a clip upon said stem. Y

4. A wire support comprising a yoke, a cap provided with facets to be engaged bym Wrench, and further pro.- vlded with. s. stem, and a revoluble threaded member conneeted with said stem, for holding said cap lna predeteri v.mined position relatively to said yoke:

l A wire supportcomprising a yoke, a cap supported therebynnd provided with a`threaded stem, o threaded niexnlier encircling said-threadedsteni and adapted to be forced agalnstsaid yoke for the purpose of securing said cap )relatively thereto, und' means for supporting a wire uponsaid threaded' ste1n.` i

v(i. A wire support. compidsing a yoke,l a cap mounted lhereuponfand provided withl a stem, a' cone encircling"v said stemgand' provided 'w'ith means for' holding it thereupon independently ot a lockingy member, and .a locking member-i engaging said cone und said' stem, for preventingr movement lbetween said conewind said stem.

7. The combination of a cone threaded internally, a wrenching cap provided with a stem threaded externally to engage said cone, and. a metallic collar mounted upon said cap'and encircling the sumo for enabling lt to, be readily tui-ned. l y

8. The combination of u clip, anda caprevoluhle in relation to said clip for .the purpose of engaging and disengnging the same, said cap being provided upon its outer peripheral edge with a metallic ring to be engaged by a -wrencln l Ail). The 'combination of a cnp provided with a threaded stem, a cone supported by said stem, and a clip provided ''with u threaded sock'et for receiving said stem said cap havlnr,r upon its outerperipheral edge a ring of metal.

In icstilnonyvwhereof I have ,slgnedcmy name to this specification ln'the presence -of two subscribing witnesses.

Louis' s'rnmnnnenn. A Witnesses i i `WALToN lLmnlsoN,l Y l Evmmun B. ltIAnsntALn.l 

